Wednesday is a frame with a decade of Surly's Omniterra design experience distilled into one steel package. Wednesday can ride over the same type of pretty much anything all of their other Omniterra bikes can, but they borrowed elements from both their Trail and Touring categories to create an Omniterra ride that can truly handle anything you want to attempt. Want to point the thing down a mountain and roll those dice? Wednesday has geometry spry enough to get you through the techy stuff, stable enough for the fast stuff, and doesn’t feel sluggish when you have to ride back to the top. It also has the chops for any sort of expedition you may want to undertake. It has plenty of bottle mounts; triple bottle bosses on both fork legs and the down tube; standard bottle mounts on the seat tube and underside of the down tube; plus rack mounts on the frame and fork and fender eyelets on the dropouts, along with barrel bosses on the crown, fork legs and mid-blade, thru-blade eyelets on the fork as well. It also has internal dropper post routing and Surly Trip Guides to manage all the housing and cables on your frame with style. Wednesday also has its very own dropout design as well – a rear-facing, slotted dropout that can use either 10mm or 12mm axles and exit rearward or vertically. They’re cast steel and spaced at 170/177mm. Wednesday gives you a lot of options in the tire clearance category. In the full-forward, short chainstay position you can run 26 x 3.8? tires on 80mm rims and in the full-rearward, longer chainstay position you get the option of 26 x 4.6? tires on an 80mm rim. Wednesday is made out of Surly's own proprietary 4130 CroMoly steel and is ED coated for extra protection from the elements.

The Surly Pack Rat is designed around porteur-style racks and front-loading optimization, with a front cargo-specific design to eliminate steering issues. The fork features internal routing for generator hubs and rear frame dropouts to accommodate multiple drivetrain configurations. It’s an ideal choice for loaded commutes and bike trips with a lighter load, but also rides great when unloaded.
- 100% Surly 4130 Chromoly frame, main triangle is double-butted; 1-1/8" threadless brazed Chromoly fork
- Bosses front and rear for cantilever or linear-pull brakes, rack and fender eyelets at the dropouts, eyelets at the crown, and fully threaded through-blade fork eyelets for a front rack
- Semi-horizontal dropouts with a derailleur hanger for geared or singlespeed drivetrains and/or wheelbase adjustability

The Surly Pugsley may be the original fat bike, but this one is far from the original. Previously a great all-around fat bike, the Pugsley has been redesigned to be an ideal off-road touring and exploration rig. Surly lengthened the chainstays 12mm for stability when loaded and so your heels float effortlessly past panniers. The tweaked rear rack mounts on the dropouts let you center your rack over the wheel, despite the offset rear triangle. Those dropouts will take a 142 x 12mm thru axle if that's your schtick, but can also be used with 135 x 10mmm QR hubs with Surly's Adapter Washers. Pugsley brings back the 135mm-spaced offset fork, so you can run a front wheel with a spare cog or freewheel as a bail-out option to swap with the rear if your internally-geared hub freezes up in neutral or you smash your derailleur having too much fun. A plethora of three-pack mounts give you gear-hauling options aplenty, so go wild with your build.
- 100% Surly 4130 chromoly frame, main triangle is double-butted; 1-1/8" threadless brazed chromoly fork
- Four sets of Three-Pack Mounts (two on the fork, two on the downtube), a water bottle mount on the seat tube, and front and rear rack mounts
- 142 x 12mm rear dropout (or 135 x 10mm QR with Surly 10/12 Adapter Washers) with Rohloff torque arm slot
- 135mm-spaced fork with 17.5mm offset for wheel swappability
- 26 x 4.8" tire clearance in frame (with drivetrain restrictions), 26 x 4.3" tire clearance in fork

“Race” isn’t in your vocabulary. Nope, you’re looking for hard-hitting durability and show-stopping trickability. Ticket, reporting for duty. This lightweight aluminum frame takes abuse, session after session and keeps coming back for more. Built for a 100mm dirt jump fork, it's geometry is highly flickable, with short chainstays and a compact cockpit for a tight ride that tricks with ease. Step up your game with the Ticket DJ.

From dunes to drifts, race to recreation, Trek's Farley lets you tackle anything, any time, for any reason. Fatten up this season. This OCLV carbon frame features a wide 197mm thru-axle that allows for tires up to 5" wide. The full-carbon Haru Pro carbon fork responds immediately to your input and carves with precision. This frameset wholeheartedly embraces versatility, too. It can accommodate a 26 x 5-inch set-up as well as 27.5 x 4-inch wheels, so you can dial your ride for your style of riding.

Off-road touring can be a zesty enterprise, but it’s not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent’s basement. If you’re going to ride your bicycles where no one can see, you better take gear that’s up to the task.
Troll is up to the task. Surly's Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and comes with the always-comfy Jones Loop bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don’t get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the down tube. Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible.

Going down?
World Cup champion Session is built to win. An all-new OCLV Carbon frame, updated geometry, advanced air shock, and a stiffer chassis make this downhill race bike faster than ever.
Session is the DH bike that excels on downhill's most brutal courses. Take on any terrain with our most advanced suspension and a geometry that can be dialed for every race.
Key features:
- Longer, more aggressive geometry keeps you attacking the whole way down
- OCLV Mountain Carbon with Carbon Armor is downhill tough
- Fine-tune your ride with Mino Link and an all-new adjustable headset system
- Fast 27.5" wheels get you down the mountain first

World Cup champion Session is built to win. An all-new OCLV Carbon frame, updated geometry, advanced air shock, and a stiffer chassis make this downhill race bike faster than ever.
Session is the DH bike that excels on downhill's most brutal courses. Take on any terrain with our most advanced suspension and a geometry that can be dialed for every race.
Key features
- Ultimate DH race bike with fast-rolling hard-charging 29" wheels and World Cup capability
- Longer, more aggressive geometry keeps you attacking the whole way down
- OCLV Mountain Carbon with Carbon Armor is downhill tough
- Fine-tune your ride with Mino Link and an all-new adjustable headset system

The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as they're offering that size in both options.
Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 27.5+ sizes also feature two sets of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.

Enduro weapon
Slash is designed from the ground up to conquer the gnarliest enduros, in a 29"-optimized package that makes this mountain bike the undisputed king of the trail.
Throw down on technical descents and fly back up the mountain. Slash dominates the most demanding trails, with 29" wheels on an aggressive, ultra-capable, lightweight carbon frame.
- Revolutionary new RE:aktiv with Thru Shaft damper: the most responsive shock available
- 150/160mm travel + 29er speed + low & long geo = enduro weapon
- Boost148/110: stronger wheels, more tire clearance, shorter stays
- Straight Shot stiffness, Knock Block frame defense

Freedom to roam
Modern trail geometry, 29? or 27.5? mid-fat options, and 130mm of travel make Fuel EX is the one go-to full suspension trail bike for all riders.
Want a rugged, capable long-travel trail bike with the responsiveness of an XC bike? This is it. Fuel EX blends the best of both worlds in one uncompromising package.
- Capable and stiff 130mm frame is 29" and 27.5+ compatible
- Boost148/110: stronger wheels, more tire clearance, shorter stays
- Exclusive suspension tech with ABP, Full Floater, and RE:aktiv
- Straight Shot stiffness, Knock Block frame defense

It's right for you if...
You're looking for a light, strong, alloy fat bike frame with a trail-optimized geometry for stability and responsiveness on any trail in any season.
The tech you get
A lightweight Alpha Platinum Aluminum frame with adjustable Stranglehold dropouts, suspension-corrected OCLV Carbon Bontrager Haru fork, and FSA headset. Rear thru axle dropout is 197mm, fork thru axle dropout is 15x150mm.
The final word
High-value fun in any season. Farley AL is fast, fun, and capable, and you're getting a great jumpstart on your build with an included Bontrager carbon fork.
Why you'll love it
1 - If you were under the impression that fat bikes were sluggish, this bike will change your mind
2 - It's a four-season freedom machine that lets you ride outside all year long
3 - You can run your choice of wheels with 26x5.0 or 27.5x4.0 tires

Stache AL Frameset is built with our lightweight and trail-tough Alpha Platinum Aluminum. The trail hardtail frameset is designed for fun-loving 29+ tires, with massive tire clearance, an elevated midstay, and Stranglehold Dropouts that make it easy to fine-tune your geometry or turn it into a singlespeed mountain bike.
It's right for you if...
Your attitude is that mountain biking should be, above all else, a ridiculous amount of fun. You want a base for your build that matches your fun-loving approach to the trail, with the versatility to run a full drivetrain or a singlespeed setup.
The tech you get
A trail-tough Alpha Platinum Aluminum frameset with super-short chainstays that give you the ability to pop off jumps and toss the bike around corners. Stache AL Frameset includes Stranglehold Dropouts so you can fine-tune your geometry or run singlespeed. It has internal derailleur and dropper post routing, includes a headset, and is designed for disc brakes and Boost148 29+ wheels.
The final word
Stache AL Frameset is the first step to more fun on the trail. The short chainstays deliver a lively ride and quick acceleration. Build it up with 29+ mid-fat tires for relentless traction.
Why you'll love it
1 - Stache is super versatile and equally at home on multi-day bikepacking trips as it is on rough singletrack
2 - The super-short chainstays make it really easy to show off your wheelie skills
3 - We're not the only ones who love it: DirtRag says, "[Stache] is the most fun bike I rode this year, and fun is where it's at."

Living legend
The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail.
The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider, and the entire Trek Factory Racing World Cup team.
Key features
- RE:aktiv XC: the smartest, fastest, most efficient shock ever
- Boost148/110: stronger wheels, more tire clearance, shorter stays
- Mino Link adjustable geometry lets you fine-tune your ride
- Exclusive suspension tech with ABP and Full Floater

The Big Fat Dummy is a long tail cargo bike that took a few too many doses of growth hormones. At first glance, you might say that Surly just put bigger tires on a Big Dummy. But if you said that, you'd actually be very wrong so just… don't. Think of Big Fat Dummy as more of a second or third cousin to Big Dummy rather than a brother. They share some of the same DNA and look sort of similar, but they're two very different bikes and really only interact when they both reach for the potato salad spoon at that family reunion that no one really wants to be at anyway.
Now that that's out of the way, let's get down to the nitty gritty of what makes this hulking beast of a bike tick. Surly's goal with designing a cargo bike around fat tires was to create the most stable, stiff, and traction-laden ride possible while hauling a ton of stuff. Big Fat Dummy has a longer toptube and slacker headtube than its more svelt cousin giving it a nice, predictable, and stable ride. They also used thinner, lighter tubing to construct its cargo area so while it's an overall burlier bike, there's not much difference in weight.
Big Fat Dummy accepts either 10mm or 12mm axles in the rear with a spacing of 190/197mm. That big ‘ol spacing equates to one thing: tire clearance for days. Big Fat Dummy maxes out at a massive 26 x 5.25" tire.* While that large of a tire provides the most traction and stability a bike can possibly offer, it's also a lot of rubber to push and might not be for everybody. Luckily, Big Fat Dummy is also a blast to ride with 3" tires too. It uses the same 100mm suspension-corrected fork as the Wednesday, meaning if you want to add a little squishy-squishy to your ride, you can throw a Bluto on and let ‘er rip.
If you intend to carry a passenger on your Big Fat Dummy, Surly requires use of their Dummy Rail Collars. These provide a secondary retention system for the rack, as well as stiffen the rack system. In addition, a stoker handlebar set up, found on tandem bicycles, is recommended as well. Make sure to check with seat post manufacturer for stoker handlebar compatibility. All Big Fat Dummy framesets and bikes ship with a Dummy deck, rails, bags, and the aforementioned Dummy Rail Collars so you can immediately start hauling cargo — human or otherwise.
Big Fat Dummy is ready and willing to carry all sorts of crap — literally. It's already in use on an organic farm in Ecuador so it's likely that it's hauled some form of manure by now.
*Using a 26 x 5.25" tire will cause some drivetrain limitations. For all the nuts and bolts of compatibility read Surly's blog on the subject.

Off-road touring can be a zesty enterprise, but it's not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent's basement. If you’re going to ride your bicycles where no one can see, you better take gear that's up to the task. Troll is up to the task.
Surly's Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. Surly also adorned this frame with their Gnot-Boost spacing, allowing you to use any mountain bike hub whether it be 135mm QR, 12 x 142mm thru-axle, or 12 x 148mm Boost hub. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and the complete bike comes with the always-comfy Surly Moloko Bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don't get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the downtube.
Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible. Man has known for eons the call of the indifferent forest. The inexorable march of time, and dumb things like cell phones, have dulled our senses and made us afraid. Reclaim your animalistic tendencies atop Man's greatest invention.

Full Stache is a full suspension 29+ trail bike with an oversized appetite for rugged backcountry riding and trail explorations into the unknown wild. Build it up the way you want! We're giving you a head start with the Fox Float rear shock, a Bontrager 35mm stem, and a headset with Knock Block frame defense.
Build it up exactly the way you want, for exactly your kind of adventure, but be sure to follow these requirements: minimum tire width: 29x2.6", recommended axle-to-race: 550mm (560mm/140mm travel max), maximum chainring size: 34 teeth.

For fast XC riders and cross country mountain bike racers who want to cover a lot of ground fast, there's no better hardtail frameset than Procaliber SL. It's built with Super Light OCLV Mountain Carbon and delivers the unique trail-smoothing advantage of IsoSpeed, which takes the edge off fatiguing bumps in the trail so you can stay stronger longer.
It's right for you if...
You want to fly up climbs, rail the corners, charge through technical sections of trail, and win every sprint to the line. You have a dream XC build in mind, and you want to start with the lightest carbon hardtail frame we offer.
The tech you get
A superlight SL OCLV Carbon frame with Control Freak internal cable routing and trail-smoothing IsoSpeed. The Procaliber SL Frameset includes a headset, and is designed for post mount disc brakes, a PF92 bottom bracket, and Boost148 wheels.
The final word
Smoother. Lighter. Faster. This bike was built to win the XC game. Its ultra-lightweight SL OCLV Carbon frame with IsoSpeed delivers serious performance fit for a serious rider.
Why you'll love it
1 - The SL OCLV Carbon frameset is the ideal start to an obscenely lightweight cross country build
2 - IsoSpeed is a real advantage, and you can't find it in any other hardtail family
3 - Control Freak Cable Management allows you to run any combination of cables exactly the way you want, while still giving you sleek looks and protecting your cables against unnecessary wear

Session AL 27.5 frameset is a burly alloy downhill mountain bike frame that's equally at home between the tape and at the DH park. It's built for 27.5-inch wheels, with 210mm of travel and a FOX Performance VAN shock tuned by Trek Suspension Lab.
It's right for you if...
You're looking to build a rugged DH or park bike for the biggest trails out there, and want a 27.5-inch optimized frameset with exclusive trail tech, like adjustable Mino Link geometry, that can't be found anywhere else.
The tech you get
A burly Alpha Platinum Aluminum frame, an adjustable FOX Performance shock with 210mm of travel, integrated frame protection, FSA Orbit headset, and exclusive trail tech like ABP, Full Floater, and Mino Link. Built for 27.5-inch wheels.
The final word
This burly frameset is perfectly capable of taking on the roughest, fastest descents you can find, and it's equally at home in the park, too. The best DH frame tech, a stable geometry, and a quality shock give you a head start on your dream downhill rig.
Why you'll love it
1 - Session has the heart of a monster truck: it rolls over everything, gives you the confidence to take on rougher trails, and saves you when you don't take the right line
2 - Quality FOX Performance suspension and our ABP frame design keep you in control
3 - Race or get rowdy? This bike does both
4 - 27.5 wheels are great for flicking the bike around through the most technical trail

While the rest of the industry was mucking about with 29-inch DH bike prototypes for professional mountain bike racers, Trek brought the party to the people with their first production 29er downhill bike. Session 29 Carbon Frameset pairs fast-rolling 29er performance and Trek's proven downhill frame technology. It's long, stable, and aggressive, with a geometry dialed for your fastest runs ever.
It's right for you if...
You need speed. You live for it. You dream about it. And when you're on the mountain, you're gonna get after it. You want faster-rolling 29-inch wheels, a carbon frame, and the latest DH tech out there.
The tech you get
Session 29 is built with an ultralight and ultra-durable OCLV Mountain Carbon, 190mm rear travel with a FOX Factory X2 shock, Carbon Armor, and integrated frame protection like built-in bumpers for a double-crown fork. Plus, it has frame tech that lets you dial your geometry, like Mino Link and the included fixed-angle headset cups.
The final word
This is the fastest downhill bike Trek makes. This 29er-optimized carbon ride is great for rolling over the rough stuff and getting to the finish line with plenty of time to spare.
Why you'll love it
1 - Trek put a whole lot into this bike, including nearly a decade of research and development by engineers and designers who wanted to break the mold of DH capability and speed—and they succeeded
2 - Session 29 is taking downhill to a new place, and it's leading the charge on the World Cup circuit among the very first 29er DH bikes
3 - The fastest runs demand the most dialed setup: the air shock and fork on Session 9.9 are adjustable and easy to fine-tune for different tracks
4 - Mino Link and fixed-angle headset cups let you adjust your geometry for the exact handling you want

Slash AL frameset is the perfect platform for a fast 29er enduro or trail bike build. With a burly Alpha Aluminum frame, Trek's exclusive RE:aktiv with Thru Shaft shock, and a Knock Block integrated headset, you have all the bones for a mountain bike that can handle everything from the biggest all-mountain descents to the most competitive enduro races.
It's right for you if...
You want a high-value head start on your enduro build and the kind of trail tech that comes only from a long heritage of all-mountain riding. You like to go fast, go big, and rail corners, and you're looking for a big bike that will stand up to whatever wild trails you can find.
The tech you get
A burly Alpha Aluminum frame, a shock with Trek's exclusive RE:aktiv with Thru Shaft damper, and an integrated Knock Block headset that stops spinning bars and the fork crown from hitting your frame. Built for 29er wheels and a 150mm or 160mm fork.
The final word
With Slash AL frameset, you're getting a whole lot of capability for your money and a great start on a bike that can handle the burliest trails out there. Whether you're racing or looking to get sendy, this burly frameset will stand up to whatever you throw at it.
Why you'll love it
1 - RE:aktiv works faster than a normal shock, so it tracks the ground better and keeps you in control
2 - It's equally at home between the tape and in the rugged wild—Yes, Slash is a race bike, but it's ridiculously fun on gnarly trail rides, too
3 - We're not the only ones who love it: Slash was awarded Mountain Bike of the Year by Pinkbike

If you're looking for a jump on a 29er enduro mountain bike that's built for ridiculous speed, you won't do better than Slash C frameset. Trail-tough OCLV Mountain Carbon tubes, Trek's exclusive RE:aktiv with Thru Shaft shock, and a Knock Block integrated headset make it the ideal enduro frame for fast rides on gnarly trails.
It's right for you if...
You're a big-mountain rider with your eyes on the Enduro World Series, so you're looking for every performance advantage you can get in a frameset. You ride sketchy descents at scary speed, and you want a bike that can keep up with your all-mountain aspirations.
The tech you get
A trail-tough OCLV Mountain Carbon frame, a shock with Trek's exclusive RE:aktiv with Thru Shaft damper, and an integrated Knock Block headset that stops spinning bars and the fork crown from hitting your frame. Built for 29er wheels and a 150mm or 160mm fork.
The final word
This is the same frameset raced by the pros of Trek Factory Racing Enduro. It's tough, fast, responsive, and fully capable of taking on the wildest enduro courses in the world.
Why you'll love it
1 - RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
2 - It's equally at home between the tape and in the rugged wild—Yes, Slash is a race bike, but it's ridiculously fun on gnarly trail rides, too
3 - We're not the only ones who love it: Slash was awarded Mountain Bike of the Year by Pinkbike

Top Fuel AL is an aluminum full suspension cross country frameset that makes a perfect starting point for your XC race rig or fast singletrack mountain bike. Lightweight Alpha Aluminum tubes, a FOX shock, and race-ready design make Top Fuel a smart choice for anyone looking for a dependable full suspension ride that's both quick and comfortable when the trail gets rough.
It's right for you if...
You're seeking a faster, more efficient way to fly across singletrack, or you're looking to upgrade to a high-value full suspension XC bike that will soak up fatiguing bumps on the trail so you can stay stronger longer.
The tech you get
A lightweight Alpha Platinum Aluminum frame with 100mm of travel and Mino Link adjustable geometry, a FOX shock with a remote lockout, and an included headset give you a solid jump on building up your fast cross country mountain bike.
The final word
Want to surprise your ride partners by taking it out fast and staying out front? Top Fuel AL frameset delivers a ridiculous amount of speed and efficiency on singletrack, and it's a high-value way to up your game in XC rides and races.
Why you'll love it
1 - Alpha Platinum Aluminum is lightweight and trail-tough
2 - More than fast, it's also capable: build it up the right way and this race-ready frameset can double as your light trail bike on more rugged terrain
3 - Internal cable routing opens the door for upgrades like a dropper post